PIRSA Logo


PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:13010005  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Solid of Inflation: An alternative symmetry breaking pattern for an EFT of inflation
Speaker(s): Solomon Endlich
Abstract: In this talk I will discuss a cosmological model where primordial inflation is driven by a `solid', defined as a system of three derivatively coupled scalar fields obeying certain symmetries and spontaneously breaking a certain subgroup of these. The symmetry breaking pattern differs drastically from that of standard inflationary models: time translations are unbroken. This prevents our model from fitting into the standard effective field theory description of adiabatic perturbations. Consequently, it exhibits a novel non-Gaussian `shape'.
Date: 15/11/2012 - 11:00 am
Valid XHTML 1.0!